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United States Patent | 5,027,859 |
Sugimura | July 2, 1991 |
An apparatus for supporting a diaphragm of an accumulator comprises a support ring which has a sectional form with a circular arc-shaped inner edge and a linear outer edge and which has an elastic layer provided on the side of the outer edge, the support ring being fitted into a groove provided in a flange of the diaphragm and inserted into a container body until it is stopped by a stage portion thereof so that the gap between the support ring and the container body is sealed by the elastic layer.
Inventors: | Sugimura; Nobuyuki (415, Nishikubo, Shimizu-shi, Shizuoka-ken, JP) |
Appl. No.: | 399820 |
Filed: | August 29, 1989 |
Sep 03, 1988[JP] | 63-116257[U] |
Current U.S. Class: | 138/30; 220/720 |
Intern'l Class: | F16L 055/04 |
Field of Search: | 138/26,30,31 220/85 B 417/540 |
Re23199 | Feb., 1950 | Baker | 138/114. |
3148706 | Sep., 1964 | Mercier | 138/30. |
3788358 | Jan., 1974 | Taki | 138/30. |
3792721 | Feb., 1974 | Zahid | 138/30. |
4793381 | Dec., 1988 | Sugimura | 138/30. |